Store-service ladder.



PATENTBD NOV. 10, 1903. P. J. DAEMIGKE. STORE SERVICE LADDER.

APPLICATION FILED NOV. 30. 1901.

N0 MODEL a a Q4760 UNITED STATES J'Patented November 10, 1903;

PATENT OFFICE.

PAUL J. DAEMIOKE, OF CHICAGO, ILLINOIS.

STORE-SERVICE LADDER.

SPECIFICATION forming part of Letters Patent No. 743,692, dated November10, 1903- Application filed November 30, 1901. Serial No. 84.280. (Nomodel.)

To all whom it may concern.-

Be it known that I, PAUL J. DAEMIOKE, a citizen of the United States,and a resident of Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in Store-ServiceLadders, of which the following is a specification, reference being hadto the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide an improvement in respect tostore-service ladders designed to increase the convenience of their useand their security in use. It consists of features of constructionsetout in the claims.

In the drawings, Figure 1 is a side elevation of my improved ladder inposition of use. Fig. 2 is a detail section at the line 2 2 on Fig. 1.

My ladder is designed to be supported and guided upon a track A on thefloor and to be supported at the upper end by leaning against ahorizontal rail, the pin or like element which I attach to the ladderbeing checked to prevent the ladder from tipping forward by a secondhorizontal rail parallel with the first, between which and the first thepin travels as the ladder is moved sideward along the track.

B represents the side bar of the ladder.

G is a bracket secured to the ladder toward the upper end, jutting 01ftherefrom rearward and having an upwardlyprojecting pin D, which extendsbetween the horizontal rails E and F, the rail E being mounted upon theforward side of the case or upon the wall along which the ladder travelsand the rail F being supported in front and parallel with the rail E bysuitable hangers or brackets G, secured upon the'front of the wall orcase and extending thence forward above the upper end of the pin D andthence downward in front to the point at which the rail F is socured. Inthe use of a ladder of this construction, in which the pin D is straightand without a horizontal projection'at its upper end, there is someliability to tilt the ladder sideward in running it along the track, andsuch sideward tilting may in extreme instances proceed so far as topermit the pin at one side of the ladder to become disengaged frombetween the rails E and F, and the wheel horizontal projection D, whichmay overhang one of the rails and prevent disengagement of the pin bydownward movement. Specifically and preferably the projection D is madeoblong, being narrow enough in one dimension so that it will passbetween the rails and long enough in the other direction so that it willoverhang one rail when turned properly for that purpose, and it istherefore made so that it can be turned from the position at which itwill enter between the rails ninety degrees to a position at which itwill overhang one rail. Preferably and as illustrated the projection Dis adapted to be thus turned by making the whole pin, with which theprojection is in that case made rigid, so that said entire pin may beturned about its axis. For this purpose the bracket 0 is provided withasocket O, in which the pin D is set and adapted to be turned. A bolt Dezrtends axially through the pin from above the projection to end in thesocket and extends also through the bottom of the socket, which isapertured to allow it to protrude, and below the socket there is applieda thumb-nut D, which may be loosened to allow the pin to be turned andtightened to hold it socurely in position with the projection Doverhanging the rail.

I claim-- 1. A storeservice ladder, adapted at the foot to rest andtravel laterally on a fixed support, such ladder having an upperterminal pin in combination withasupport for the upper end of the laddercomprising horizontal rails, between which the terminal pin extendsupward, and against the rear of which the pin rests to transmit'theretothe leaning weight of the ladder; brackets overhanging the path of thepin and supporting the forward rail, the pin having at its upper end anoblong projection adapted in one dimension to enter between the rails,and in the other dimension to overhang one of the rails, and

being normally out of contact with the rail 1 which it overhangs, abracket secured to the ladder-having a socket in which the pin is lodgedand adapted to rotate to turn the projection from position for enteringbetween the rails to position for overhanging one of them, and means forreleasably securing the pin in the socket.

2. A store-service ladder having an upper terminal pin, and adapted atthe foot to rest and travel laterally on a fixed support, in combinationwith a support for the upper end of the ladder comprising horizontalrails between which the terminal pin extends upward, and bracketsoverhanging the path of the pin and supporting the outer rail, the pinhaving at its upper end an oblong projection adapted in one dimension tooverhang one of the rails, and bracket securedv to the ladder having asocket in which the pin is lodged, and adapted to rotate to turn theprojection from position for entering between the rails to position foroverhanging one of them, a bolt extending axially through the pin andprojecting below the socket, and a thumbnut applied to the projectingend of the bolt whereby the pin may be releasably clamped in the socket.1

In testimony whereof I have hereunto set my hand, at Chicago, Illinois,in the presence of two witnesses, this 14Eth day of November, A. D.1901.

PAUL J. DAEMICKE. In presence of-- LoUIs 001m, A. D. DAEMIOKE.

